What does U1510 mean on a Chevy?

U1510. Lost Communication With Active Grille Air Shutter Actuator on LIN Bus. Applies to Silverado, Sierra, Equinox, Malibu, Cruze.

What causes U1510 on a Chevy?

Failed active grille air shutter actuator on the ECM LIN bus Water intrusion into the shutter actuator connector after heavy rain Chafed LIN bus serial data wire to the shutter assembly Shutter vanes jammed by road debris stalling the actuator motor

How do I fix U1510 on a Chevy?

Scan for companion codes such as P059F that point directly at the shutter assembly Inspect the shutter vanes for debris damage and the actuator connector for water intrusion Test the LIN bus circuit between the ECM and the actuator for opens and shorts Command the shutter with a Tech2 or GDS2 and watch for actuator response Replace the active grille shutter actuator only after circuit tests pass, then verify U1510 stays clear

Code

U1510

Lost Communication With Active Grille Air Shutter Actuator on LIN Bus

Category: Network Communications
Severity: Check Engine Light
Applies to: Silverado, Sierra, Equinox, Malibu, Cruze
Related: No single generic twin. See OBD Codes List

What it means

U1510. Lost Communication With Active Grille Air Shutter Actuator on LIN Bus. This Chevy-enhanced code applies to Silverado, Sierra, Equinox, Malibu, Cruze.

Findings, check these first

Failed active grille air shutter actuator on the ECM LIN bus
Water intrusion into the shutter actuator connector after heavy rain
Chafed LIN bus serial data wire to the shutter assembly
Shutter vanes jammed by road debris stalling the actuator motor

Standard procedure

Scan for companion codes such as P059F that point directly at the shutter assembly
Inspect the shutter vanes for debris damage and the actuator connector for water intrusion
Test the LIN bus circuit between the ECM and the actuator for opens and shorts
Command the shutter with a Tech2 or GDS2 and watch for actuator response
Replace the active grille shutter actuator only after circuit tests pass, then verify U1510 stays clear

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Sources and review

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Last updated 2026-09-19.

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